Film for phonographic records



1931- H. KUCHENMEISTER 1,836,124

FILM FOR PHONOGRAPHIC RECORDS Original Filed Oct. 29,1927

Patented-"Dec Is,- 1931 UNITED STATES PATENT o KUOHENMEIB'IIQ O1 BERLIN,GW-

II'IIM FOR PHONOGBAPHIO RECORDS Oflginahipplioatlon. filed October 28,1827, Serial Io. 389,758, and in Germany November 8, 1028.

and this application fled February 88, 1929. Serial No. 842,775.

' My invention. relates to films for phonographic records and it is anobject of my 1nvention to provide a film of narrow width which isexclusively provided with sound curves. This application is a divisionof my copending application, Serial No. 229,758, filed October29th,1927.

It has already been proposedto provide phonographi'c records on picturefilms with the ob ect of simultaneous reproduction in a comparativelysimple manner but the space 'for the phonographic records is -muchrestricted by the large pictures. It has also been proposed to providefilms exclusively with l phonographic records but such films though ofnormal width were so-called endless film's which have the drawback thattheir len h is much restricted and that it is not possi le toconnectseveral such fihnsby pasting them together. My films, on theother hand, are of.

finite length. In order not only to save material but also to simplifthe rendering and to reduce its cost, the fi lm which according to myinventionis provided only with phonographic records, is made muchnarrower than in the commercial films. This involves a correspondingsimplification and reduction of cost in the means forwfeeding the film.As, furthermore,

in my invention the film is fed not intermittently but continuousl thefeeding 'ap-. liances'are much simp ified. Narrow films lia've alreadybeen proposed but exclusively In contradistinction, in my invention I mautilize the'edge of the plate record of a tallZing machine, or instance,as the means for feeding the film. With a film having pic-' tures 'aswell as phonographic records, or'a 0 film 'ofnormal width, this wouldobviously be impracticable.

B providing onl phonographic records on the films, the furt er importantadvantage is obtained that notwithstanding the narrowness of the bandsit is-possible to arrange for pictures but these are fedintermittently.. the film w ity. Such records may be taken FFICEVDivided roximof the same piece of music but separately of the severalinstruments, for instance,.the wind and chord lnstruments of a band andto amplify the records to various extents in order to make up forcertain defects of the recording method. Besides, phased.

the several records may be de- In order to provide positive engagementthe film and the feeding'means I may provide central perforations orserrations at one or either edge of the film. In the case of centralperforations records may be made at either side of the row In theaccompanying films embodying my by we of example. In t edrawings: Fig. 1shows a film foratlons and straight ed s,

Fig. 2 shows a film havmg serrated Fig. 3 shows a film edges, with thefeeding thereto, and

Fig. 4 showsa film as in Fi 3 having only ofdperforations.

rawings several mvention are illustrated having central perhaving corruated roller pertaining one record and correspon ingly reduced width.

Referring now to the drawings, and first to Fig. 1, a is a film, b arecentral perforations in the film adapted to be en e s y teeth on theroller (1, or by any other suitable means as ins or the like, '0, c arethe edges of ich are lain, as well as the shrouds hatching.

Referring to Fig. 2, the film a has serrated edges and the shrouds onare serrated in conformity.

the roller (1 Referring to Fig.- 3, the edges of the film arecorrugated, and so are the shrouds roller d. i

The films shown in the preceding have each two records which may be 1dof the figures entical I0 but dephased. Fig. 4 shows a film of minimumwidthwith only a single record.

I claim: v A flexible sound record comprising a narrow film of uniformwidth and finite length with but asingle row of perforations, saidperforations being located substantially along the center line of saidfilm and a separate photographical sound record on each side of said rowof perforations.

In testimony whereof I aflix my signature.

HEINRICH KUCHENMEISTER.

